Homer Tope Rosenberger, 74, a retired chief of training at the Bureau of Public Roads in the Commerce Department who also had worked for other federal agencies, died of cancer Oct. 5 at the Waynesboro Hospital in Waynesboro, Pa.

Apart from his government career, which extended from 1935 until 1965, when he retired and moved to Waynesboro, Dr. Rosenberger had been a teacher and a consultant and had been active in numerous historical associations in Pennsylvania. He was a former president of the Columbia Historical Society in Washington.

He was born in Lansdale, Pa. He graduated from Albright College and earned master's and doctoral degrees from Cornell University.

Dr. Rosenberger moved here in 1935 to work in the U.S. Office of Education. In 1942, he became superintendent of training in the Bureau of Prisons at the Justice Department. He joined the Bureau of Public Roads in 1957 and retired from there.

His first wife, Gertrude Pauline Rosenberger, died in 1975.

Survivors include his wife, Jean Hershey Rosenberger of Waynesboro; two daughters, Mrs. Harry C. Furminger of Binghamton, N.Y., and Mrs. Patrick R. Myers of Geneva, Switzerland; two stepchildren, Mrs. Allen E. Armentrout and Thomas L. Richards, both of Burke; a brother, Donald, of Raymond, Maine, and five grandchildren.